Riveting anvil

Abstract

An anvil for use in riveting one element to another element such as belting and a clasp for the belting. The anvil defines at least one aperture, and preferably a plurality thereof, for receiving detachable, rivet-carrying nails, whereby a rivet carried on the nail has an end that faces the anvil. The anvil defines an outer face surrounding the aperture for engaging and shaping the rivet end. The outer face is free of adjacent, upstanding walls beyond the normal diameter of the rivet and outside of and facing the aperture. Accordingly, the rivet end may spread freely outwardly from the aperture as the anvil shapes the rivet end, contrary to the prior art.

That which is claimed: 
     
       1. An anvil for use in riveting one element to another element, said anvil defining an aperture receiving a nail carrying a partially tubular rivet, said rivet having a tubular end that faces said anvil, said anvil defining an outer face surrounding said aperture for engaging and shaping said tubular rivet end, said outer face being free of adjacent, upstanding walls outside of and facing said aperture, whereby said tubular rivet end may curve and spread freely outwardly from said aperture to form an outwardly flaring flange as the anvil shapes the rivet end. 
     
     
       2. The anvil of claim 1 in which a first portion of said outer face surrounding said aperture defines an elevated area when compared with other portions of said anvil outer face. 
     
     
       3. The anvil of claim 2 in which said elevated area is from about 0.03 to 0.07 inch elevated over said other portions. 
     
     
       4. The anvil of claim 2 in which said first portion of the outer face defines an annular, outer, convex slope portion. 
     
     
       5. The anvil of claim 1 in which said outer face surrounding said aperture is flat. 
     
     
       6. The anvil of claim 1 in which said outer face surrounds a plurality of said apertures. 
     
     
       7. The anvil of claim 1, in combination with a hammer member for driving said end of a rivet carried by said nail in the aperture against said outer face. 
     
     
       8. The anvil of claim 1 in which a nail occupies said aperture, a length of belting and a fastener overlying said aperture, and a rivet, carried by said nail and extending through said belting and fastener. 
     
     
       9. An anvil for use in riveting one element to another element, said anvil defining an aperture receiving a detachable nail carrying a partially tubular rivet whereby said rivet carried on the nail has a tubular end that faces said anvil, said anvil defining an outer face surrounding said aperture for engaging and shaping said rivet end, said outer face being free of adjacent, upstanding walls outside of and facing said aperture beyond the maximum diameter of said rivet, whereby said tubular rivet end may curve and spread freely outwardly from said aperture to form an outwardly flaring flange as the anvil shapes the rivet end, in which a first portion of said outer face surrounding said aperture defines an elevated area when compared with other portions of said anvil outer face. 
     
     
       10. The anvil of claim 9 in which said elevated area is from about 0.03 to 0.07 inch elevated over said other portions. 
     
     
       11. The anvil of claim 10 in which said first portion of the outer face defines an annular, outer, convex slope portion. 
     
     
       12. The anvil of claim 11 in which said outer face surrounds a plurality of said apertures. 
     
     
       13. The anvil of claim 12 in combination with a hammer member for driving said end of a rivet carried by said nail in the aperture against said over face. 
     
     
       14. The anvil of claim 13 in which a rivet-carrying nail occupies said aperture, a length of belting and a fastener overlying said aperture, and a rivet, carried by said nail and extending through said belting and fastener. 
     
     
       15. An anvil for use in riveting one element to another element, said anvil defining an aperture receiving a detachable nail carrying a partially tubular rivet, whereby said rivet carried on the nail has a tubular end that faces said anvil, said anvil defining an outer face surrounding said aperture for engaging and shaping said rivet end, said outer face being free, beyond the maximum diameter of the rivet used, of adjacent, upstanding Walls outside of and facing said aperture, said outer face surrounding said aperture being flat. 
     
     
       16. The anvil of claim 15 in which said outer face surrounds a plurality of said apertures. 
     
     
       17. The anvil of claim 16, in combination with a hammer member for driving said end of a rivet carried by said nail in the aperture against said outer face. 
     
     
       18. The anvil of claim 17 in which a rivet-carrying nail occupies said aperture, a length of belting and a fastener overlying said aperture, and a rivet, carried by said nail and extending through said belting and fastener.